1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a565dc2261abb607a137fc65cc6eab43a76579b92852920530d26fcce7df6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28f5f9c9-66e0-403f-b678-7d4490775b75.json and https://artists.proofprofile.net/proofs/artist/28f5f9c9-66e0-403f-b678-7d4490775b75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55222e08aa861a84adbac7b5531122dd16d208330ac4d58afddf9b8849d2cd5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTLA2482830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd9df560dad90590d9a29122fa90dff0cf6d1d1a9ded5ccbebfc3bf0559b61. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2472889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dcdada05708c5a214645e1d20c75348e7018d1979b2fc32c3258f3f253fedb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS7J2396626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7f192d8f9cb25dd9c07bb9301a515d4bd3ef92b5c3242e3b1e42c665301980. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2358318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a65f5e2437d3a6c688c50e63661b5092c79baec466960531a708fb90b5b91d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGU2398877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e798fd78a4f90c9cac9c810a64e9458c9395daf3f1df57b2f05f5c3cfc1d3d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955c54e4f22f5d1232d8a9aac49fdd3cd7682dfd61e7695dd610f6596ba8b3e0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e35c7216c589b3a60899657e8f3cffacf3f3e05c60fc9a2a1502d591513d17. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2f246259c4c2265598d6d7dd51f2c207e9b5fbccfa373dddeb433356a07291. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201742.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df61b0bd66a8bbb47a8a39e7d800ed485ab312e1b49269ac42b0636fd4d3b8. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb720f15fbe0c7db6b5defcac47e842ae9490599c5be62f92de5634af8f1b630a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2201740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa9d26f8801a2cff4eb01bd1921038cb88dfb51c1095038d50f75d2f367eed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDXS2100966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081af7ef7c720ffb650c64c346aac9b4b5504689fc16669b9455770a6d4bdb5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDXS2100622.
Aye Yo Remix by DJ Buddha (feat. Shaggy & Angela Hunte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d332fae54f50d3c5419d7e732f1e5d45fe5affd704eb0594d4b084ba74f7846. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDXS2013751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885a76a8ca73a0e696501d5fe03e471964ae868b03f3eecbf842505245ce18d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2005241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252b9b3129da3609fb0c68cc9daa0d32d4c2de35d99ae3c165836797830e8a94. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2006216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2432d011cab43ffb2da1b6cb6ac3fde6dfcf1f90eac10b67cf4d9c6559a3898. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJK71900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256b93df65f3f34e955cc94144d68dbf73de34efa2de2bfac71c9fabd3ab818e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81953874.
Coming Off Strong (Vibez Is Private) [Tazer Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8003fbf21a6911e9c70b05851559a4a4165fa3df78ca7aa427b1a5184f9c8759. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1907776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f834de13442c8248d33d02cb168462063eeb30102707b66c453eb7694625ba5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1814931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251ebacec5b4ffb7e782e8c1fe26c89e260d1b2703a629ad04648c6e9b7aec4f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1804973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098c10fee330ba710d87a8ba294497880af15427ee1120a0ac0753e84c6d13f1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1801071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef57e2937f695c0b0c6e9342045f51b10071c4c408d08f6c6df790aba89f5a09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADC1795615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e1f1e32c8663b225592dc530bb750f9b1d051996f0f62ba3bbbc4fc6d1c06a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1650528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5ad2fd18a505f15d03b83ac44732736fc1694567e20e0383dd1a64f476cf3d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1071959.
Friends First (feat. French Montana) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41439f29afae50513d3d12a5f208118a8b18ff260608b1259da05d571a648b64. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cea46e5adef0db4583059d68b22f0290d3ed61dd6b8fb26a969d51b46d27f3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704e82df0bf3b54c4fa11bd197e43199dfd1e589a025bf5fee090f27aba08c4b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de62cf5cbf933f532d4d7b5b0f2b52188b067fd64938a74dbaf3150e806764b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369c1046df46e3355d9ae719ff218bdc8712162fc5fc56822d028a860c8f45b3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db0fc179513df8c86d96e954bf4da84aea428526878b83eca0b34dc3debde0b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8707fc4292d13b330a89f5a286081807fcd5bdf4c827a82a06d6c88d5ba4629. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b244500b8067f24fc8bc11e34f05c753d5d5cce08f9d0cf093022d020516156. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd1671fef7de52a05810b10155b2eba039d0f8e6b6d8ca47e5e46fcaf459d44. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TLVEM2473438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddb659c68ac451c6cf0d65f90fc02edb82fc571b273f457533ba7d6b4b4e069. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTLA2517557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3059ce9ca0071c0cea1edc34250a998ba469a9dcf3969c854022f87718889df5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZSYP2589265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d071be03870b605e161286c9a9b442b5f750f95433a717c87a3ee7ed1fe364a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTLA2579077.